Printing-press, especially of the bed-and-platen type.



No. 881,998. 8 PATENTED M'AR.17, 1908.

' A. BURBAGH.

PRINTING PRESS, ESPECIALLY OF THE BED AND PLATEN TYPE.

APPLICATION 'HLED SEPT.26, 1906.

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By his Attorney,

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N A. BURBAGH. PRINTING PRESS, ESPECIALLY OF THE BED AND PLATBN TYPE.

APPLIGQTIONI'ILED 8EPT. 26, 19 06.

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THE NORRIS PETERS $0., WASHINGTON, D c,

'IATENTED MAR. 17, 1908.

UNITED STATES PATENT OFFICE.

ARTHUR BURBACH, OF LEIPZIG-SGHLEUSSIG, GERMANY, ASSIG-NOR TO THE FIRM OFJ. G.

SCHELTER & GIESECKE, OF LEIPZIG, GERMANY.

PRINTING-PRESS, ESPECIALLY OF THE BED-AND-PLATEN TYPE.

Specification of LettersPatent.

Application filed September 26, 1906.

Patented March 17, 1908.

Serial No. 336,235.

To all whom it may concern:

Be it known that I, ARTHUR BURBAOH, a

subject of the King of Saxony, residing in Lerpz1g-Schleuss1g, Germany,have invented F certain new and useful Improvements in Printing-Presses,Especially of the Bed-and- Platen Type, of which the following is aspecifieation.

This invention relates to printing presses, especially of the bed andplaten type.

The object of the invention is to provide means for securely supportingabook or other article on the platen member to be printed in variousways or embossed, or both, upon the platen being brought against theprint ing bed.

A further object of the invention is to provide means whereby the bookor other article to be printed on one of its edges will be rigidlyclamped in proper printing position when the platen reaches the end ofits operative stroke or movement, and upon the platen returning the bookor other article will be automatically released by the clamping means,whereby its removal from the platen is greatly facilitated.

The invention further comprises means for supporting the book or articleat the side or edge opposite the side to be printed in the properposition at the end of the printing movement, which means, when theplaten is returned after the printing operation, will automaticallyadvance the book or article from such position and further facilitatethe handling of the book or article for removal from the platen.

In the drawings accompanying and forming a part of this application,representing an embodiment of the invention, Figure 1 is a sideelevation with the platen and operating members in the open or rearposition, and Fig. 2 is a similar view with the platen at the end of itsprinting stroke, the book being in contact with the bed.

The platen 1 has its curved face 2 arranged to roll on the plane face 3of the bed member, and is operated by a pair of connecting rods 4, onlyone of which is illustrated. The connecting rod may be attached to theplaten 1 by the usual eccentric bearings 38, and which are adjustable bymeans of a connecting member 39 to cause the face 6 of the platen tovary its distance from the bed face 40 at 1 the limit of the stroke.

The platen is guided 5 by means of guiding-pins 41 operating in the 1slot of a slotted member 5, such parts being in duplicate on oppositesides. This slot is so shaped that during the early part of its movementthe platen will rock 011 its curved surface 2, and thereupon the pinwill slide in the transverse portion of the slot and the platen willmove horizontally up against the bed 40.

The book or other article, represented by S, is placed on the transverseface 7 of the platen, which is at right angles to the printing face 6 ofthe platen. The book has its rear face 12 opposite the face 11 of theedge that is to be printed or embossed by the bed 40 supported by anadjustable bracket 10, secured to the platen by means of a bolt 10*.Means are provided for advancing the book when the platen is moved backafter the printing stroke, which means are automatically operated by thepress. In the construction shown a number of pins 10 slide in suitableapertures in the bracket 10. A pair of levers 14 are pivoted to theplaten at 29, and are also pivotally connected with the pins 10 at 13,whereby rocking of the lever will reciprocate the pins to advance thebook from the printing position, shown in Fig. 2, to the advancedposition shown in Fig. 1. In the latter position the book or otherarticle can readily be grasped by the operator and its removal from theplaten greatly facilitated. The next book or article can be in a similarmanner grasped by its edge and placed inthe same position.

The pins 10* and levers 14 are automatically orperated by means of apair of slides 16 operating in socket members 20 and 30 on each side ofthe platen respectively. The extremity 21 of the slides 16 normallyproject beyond the curved face 2 of the platen, as shown in Fig. 2. Butwhen the platen is in its extreme rear position the end 21 will beengaged by the face 3 of the bed member and moved upward to the positionshown in F g. 1. This movement, by reason of the pins 17 engaging slots171 in the levers 14, will rock the levers and advance the pins 10 tomove the book to the position shown in Fig. 1. But as soon as the pressis operated from the connecting rods 4, the slides 21 being re-' leasedfrom the bed surface 3, the slides will be retracted by coiled springs18 connected between the sockets 30 and lugs 31 secured to the slides.Means are also provided for engaging the face of the book or articleopposite to the face resting on the surface 7 of the platen. In theconstruction illustrated a pair of rods 23 are arranged, one on eachside of the platen and slidable in socket members 32 and 33. At theupper end the rods are connected by a clamp bar 22, which is adjustablethereon by means of nuts 34 and 35 to accommodate dif erent thicknessesof books or other articles. The clamp rods when released are caused topress the bar 22 on the book by means of coiled springs 24 on the rods23, interposed between lugs 37 on the rods and the sockets 33. I/Vhenthe laten is in the closed position, as shown in ig. 2, the springs arefree to act and clamp the book. But as the platen is drawn back to itsopen position the clamp rods are moved upward away from the book bymeans of a roller 26 on the end of each slide 16, engag ing a wedgemember 25 fast on each of the rods 23. By this means the rods and clampplate are moved upward to the position indicated in Fig. 1. This willpermit the ready removal of the book in the open position. But as soonas the platen is operated toward the closed position, upon the slides 21being free from the bed face 3, the slides being retracted by thesprings 18, will release the rods and the springs 24 will cause theclamp blade 22 to securely engage the hook and re tain it in properposition for printing or embossing. Additional means are also providedfor rigidly locking the rods 23 to hold the book in printing position.In the arrangement shown the beveled edge blocks 27 are secured on thelower end of each rod 23 and engage beveled edge projections 28 on thebed member. As the platen approaches the printing position thesebeveledsurfaces will engage and draw the clamp blade 22 downward to engage thebook, and there upon parallel faces of the said members 27 and 28 willengage and retain the clamp rod in its locking position.

Having thus described my invention, I claim:

1. In a press, the combination of a bed member having a printing face,and having a face extending perpendicular to the printing face, a platenmember having a curved face by which the platen can roll over the saidperpendicular face of the bed member, the platen member having a faceextending transversely to the printing. face of the bed when the platenis in the printing position, a support adjustably mounted on saidtransverse face of the platen to engage the side of a book or articleopposite the side to be printed by the said face of the bed, meansconnected with said support and movable to engage the article to advanceit from the support, said means having a member normally projectingbeyond the curved face of the platen to engage the bed and thereby causethe support to advance the article, and

means for retracting the support and said means.

2. In a press, the combination of a bed member having a printing face,and having a face extending perpendicular to the printing face, a platenmember having a curved face by which the platen can roll over the saidperpendicular face of the bed member, the

platen member having a face extending transversely to the printing faceof the bed 7 platen to engage the bed and thereby cause the support toadvance the article, means for retracting the support and said means,and clamping means arranged to lock the article in its printingposition.

3. In a press, the combination with a bed .member having a printingsurface, and a platen movable toward and from said surface, of a supportsecured on a face of the platen extending transversely to the printingface of the bed in the printing position of the platen, whereby toengage a book or other article on its side opposite the side to beprinted, means automatically operated by the platen to advance the bookbeyond its printing position upon the platen being retracted after theprinting operation, and means for engaging the book or article on theside opposite the said transverse side of the platen, said means beingautomatically operated in a direction parallel with the printing surfaceof the bed during the movement of the platen to clamp the book when theplaten is in the printing position, and to release the book when theplaten is retracted from the printing position.

4. In a press, the combination with the bed member having a printingsurface and a platen movable to and from the printing surface andprovided with a face extending transversely to the printing surface whenin the printing position, of a supporting member on said transverse facearranged to engage the side of a book or article opposite the side to beprinted, and a clamping member carried by the platen and automaticallyoperated in a direction parallel with the printing surface of the bed toengage the book or article to press it against said transverse face whenthe platen is in the printing position, and to release the book orarticle when the platen is retracted from the printing position.

5. In a press, the combination with the bed member having a printingsurface and a platen movable to and from the printing surface andprovided with a face "extending transversely to the printing surfacewhen in the printing position, of a supporting member on said transverseface arranged to engage the side of a book or article opposite the sideto be printed, a clamping member carried by the platen and automaticallyoperated to engage the book or article to press it against saidtransverse face when the platen is in the'printing position, and torelease the book or article when the platen is retracted from theprinting position, resilient means organized to operate the clampingmember toward its clamping position, and a positive locking meansarranged to secure the clamp in its final clamping position.

6. In a press, the combination of a bed member having a printing face,and having a face extending perpendicular to the printing face, a platenmember having a curved face by which'the platen can roll over the saidperpendicular face of the bed member, the platen member having a faceextending transversely to the printing face of the bed when the platenis in the printing position, a support adjustably mounted on saidtransverse face of the platen to engage the side of a book or articleopposite the side to be printed by the said face of the bed, a memberconnected with said support and movable to engage the article to advanceit from the support, slide members on the platen normally projectingbeyond the curved face thereof and retained in such position byresilient means, whereby the projecting end of the slide will engage thesaid perpendicular face of the bed to be operated thereby, leverscarried by the platen and connected with the slides and with theadvancing members on the support, whereby the latter members areadvanced and retracted upon the said projecting end of the slidesengaging and disengaging the bed.

7. In a press, the combination of a bed member having a printing face,and having a face extending perpendicular to the printing face, a platenmember having a curved face by which the platen can roll over the saidperpendicular face of the bed member, the platen member having a faceextending transversely to the printing face of the bed when the platenis in the printing position, a support adjustably mounted on saidtransverse face of the platen to engage the side of a book or articleopposite the side to be printed by the said printing face of the bed, amember connected with said support and movable to engage the article toadvance it from the support, slide members on the platen normallyprojecting beyond the curved face thereof and retained in such positionby resilient means, whereby the projecting end of the slide will engagethe said perpendicular face of the bed to be operated thereby, leverscarried bythe platen and connected with the slides and with theadvancing members on the support, whereby the latter members areadvanced and retracted upon the said projecting end of the slideengaging and disengaging the bed, rods slidable on the platen member, aclamping plate secured to said rods and arranged to press the book orarticle against the transverse face of the platen, and means on saidslide members arranged to operate said rods.

8. In a press, the combination of a bed member having a printing face,and having a face extending perpendicular to the printing face, a platenmember having a curved face by which the platen can roll over the saidperpendicular face of the bed member, the platen member having a faceextending transversely to the printing face of the bed when the platenis in the printing position, a support adjustably mounted on saidtransverse face of the platen to engage the side of a book or articleopposite the side to be printed. by the said printing face of the bed, amember connected with said support and movable to engage the article toadvance it from the support, slide members on the platen normallyprojecting beyond the curved face thereof and retained in such positionby resilient means, whereby the projecting end of the slide will engagethe said perpendicular face of the bed to be operated thereby, leverscarried by the platen and connected with the slides and with. theadvancing members on the support whereby the latter members are advancedand retracted upon the said projecting end of the slides engaging anddisengaging the bed, a pair of slides movably supported on the platen, aclamping bar secured. to the slide and arranged to engage the outer faceof the article to clamp it on the transverse face of the platen, wedgemembers carried. by the said rods, rollers on the end of said slidesarranged to engage the wedge members and shift the rods to move theclamp bar away from the article, and springs arranged. between the rodsand the platen tending to retain the rods in the clamping position.

9. In a press, the combination of a bed member having a printing face,and having a face extending perpendicular to the printing face, a platenmember having a curved face by which the platen can roll over the saidperpendicular face of the bed member, the platen member having a faceextending transversely to the printing face of the bed when the platenis in the printing position, a support adjustably mounted on saidtransverse face of the platen to engage the side of a book or articleopposite the side to be I printed. by the said printing face of the bed,

a member connected with said support and movable to engage the articleto advance it from the support, slide members on the platen normallyprojecting beyond. the curved face thereof and retained in such positionby resilient means, whereby the proj ecting end of the slide Will engagethe said perpendicular face of the bed to be operated thereby, leverscarried by the platen and connected With the slides and With theadvancing members on the support whereby the latter members are advancedand retracted upon the said projecting end of the slides engaging anddisengaging the bed, a pair of slides movably supported on the platen, aclamp bar secured to the slide and arranged to engage the outer face ofthe article to clamp it on the transverse face of the platen, Wedgemembers carried by the said rods, rollers on the end of the said slidesarranged to engage the Wedge members and shift the rods to move theclamp bar away from the article, springs arranged between the rods andthe platen tending to retain the rods in the clamping position, headscarried by the said rods and provided With an inclined face and also aface parallel with the said perpendicular face of the bed member, and anextension on the bed member having inclined faces and also facesparallel With the said perpen dicular face of the'bed, whereby the rodsare positively moved to clamp the book and thereupon locked in theclamping position.

ARTHUR BURBACH. Witnesses:

REINHARDT RARLER, RUDOLPH FRIoKE.

